Fuel-oil atomizer and burner



1'. c. KERR FUEL oIL momma Ann BURNER Filed Feb. 25, 152e Jly 20 gwuwnkoc vPatented July 20, 1926.

UNITED STATES THOMAS C. KERR, OF SCHRIEVER, LOUISIANA.

FUEL-OIL ATOMIZER AND BURNER.

Application sled February 25, 1926. serial No. 90,570.

This invention relates to fuel oil atomizers and burners.

An important object of the invention is to produce a device of this character which will reduce the fuel oil to a very tine spray and which will at all times maintain the fuel oil in proper proportion to admitted steam or a1r whlch supports the combustion thereof.

A further object of the invention is to provide a device of this character which may be ver cheaply and readily manufactured, Whlch will be durable and eiicient in service and a general improvement in the art.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention and Wherein:-

Figure lis a vertical sectional view through a burner constructed in accordance with my invention;

F i ure 2 is an enlarged sectional view on the hne 2 2 ofrFigure 1.

Referring now more particularly to th drawings, the numeral 10 indicates a pipe fitting having four radiating branches, 1n one of which is engaged one end of a tube 11, the outer end of which has coupled thereto by a coupling 12 a burner nose 13. This burner nose has in its outer end a flared .socket 14, the smaller end of which communicates with the-bore l5fof the nose. The inner end Iof the bore 15 is enlarged, as at 16, and threaded for engagement with the inner end of a relatively small pipe 17, the outer end of which is passed through a bushing 18 carried by asecond branch of the fitting 10 which is diametrically opposed to the branch in which the tube 11 is engaged. The outer end of this tube 17 is adapted for connection with a source of steam or air under pressure. Adjacent the outer end thereof the burner nose has a diametrically extending bore 19 in which is threaded a key plug 20. This key plug has a tapering transverse bore 21 at the approximate center thereof, a second transverse bore 22 axially paralleling the bore 21 and a port 23 connecting the bores 21 and 22. This port enters the bore 21 at a point spaced from the smaller end thereof. The burner nose has a port 24 which aligns with the bore 22 of the key plug when properly positioned and this port 24 opens through the inner end of the burner nose. When the key plug is properly positioned, the bore 21 is co-axial with the bore 15 and has its larger end, which is of substantially the same diameter as the bore 15, facing toward the outer end of the bore 15. The tvvo remaining branches of the fitting 10 have reducers 25 by means of which conduits 26 and 27 are connected With the interior of the fitting 11'). The conduit 26 is intended for connection with an oil line While the conduit 27 is intended for connection With a source of air or steam under pressure. This connection is only occasionally resorted to and preferably is pro vided. by connecting the conduit 27 with the tube 17 through a valve 28.

In the operation of the burner, steam or air under high pressure is injected through the tube 17 and as it passes through the bore 21 causes a vacuum, drawing oil through the restricted port 23. This oil is forcibly en` gaged by the tine stream of steam or air passing through the smaller end of the bore 21 and in the bore 15 between the key plug and the end of the bore 15 is thoroughly in termingled with the air or steam so that as it passes from the conical mouth of the burner nose is very finely divided and in eX- cellent condition for combustion. The steam or air line 27 is employed in event any small particle clogs either` the bores 24,22 or port- 23, the valve 28 being open to permit the steam pressure to be exerted against the obstruction. However, since no air comes in contact with the oil in these port-s, there is no tendency to combustion at these ports and accordingly there is no carbonizing which would tend to clog the same.

It will be obvious that the construction hereinbefore set forth is capable of a certain range of change and modification Without materially departing from the spirit of the invention and 1 accordingly do not limit myself to such specific structure except as hereinafter claimed.

I claim 1. A fuel oil atomizer and burner having a nose provided with a bore, a transversely extending key plug intercepting the bore adjacent its outer end. the key plug having a bore co-axial with the bore of the nose, said bore of the key plug having its greatest diameter at its Outer end and tapering toward its inner end, a second bore in the burner nose, a second bore in the key plug communicating' With the second bore of the burner nose and a port' connecting the bores of the key plug.

2. A fuel oil atomizer and burner having a nose provided with a bore, a transversely extending key plug intercepting the bore ad'acent its outer end, the key plug having a ore co-axial with the bore of the nose, said bore ot' the key plug having its greatest diameter at its outer end and tapering toward its inner end, a second bore in the burner nose, a second bore in the key plug communicating with the second bore of the burner nose, a port connecting the bores ot' the key plug, means .for delivering air or steam under pressure t0 the first named bore of the burner nose and means for delivering 1I oil to the second bore of the burner nose.

3. A fuel oil atomizer and burner having a nose provided with a bore, a transversely extending key plug interceptin the bore adjacent its outer end', the key p ug having a bore co-axial with the bore of the nose, said bore of the key plug having its greatest diameter at its' outer end and tapering toward its inner end, a second bore in the burner nose, a second bore in the key plug communicating with the second bore of the burner nose and a port connecting the bores of the key plug and communicating with the first named bore of the key plug intermediate the ends thereof.

In testimony whereof I hereunto aix my signature.

THOMAS C. KERR. 

